Class: VER::Layout

Inherits:
Tk::Tile::Frame
  • Object
show all
Defined in:
lib/ver/layout.rb

Defined Under Namespace

Modules: HorizontalTiling, Tiling, VerticalTiling

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent, options = {}) ⇒ Layout

Returns a new instance of Layout.



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# File 'lib/ver/layout.rb', line 5

def initialize(parent, options = {})
  super

  pack(fill: :both, expand: true)

  @views = []
  @options = {}
  self.strategy = Layout::VerticalTiling
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/ver/layout.rb', line 3

def options
  @options
end

#strategy ⇒ Object

Returns the value of attribute strategy.



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# File 'lib/ver/layout.rb', line 3

def strategy
  @strategy
end

#views ⇒ Object (readonly)

Returns the value of attribute views.



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# File 'lib/ver/layout.rb', line 3

def views
  @views
end

Instance Method Details

#apply(options = {}) ⇒ Object 



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# File 'lib/ver/layout.rb', line 98

def apply(options = {})
  @options.merge!(options)
  strategy.apply(self, @options)
end

#close_view(view) ⇒ Object 



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# File 'lib/ver/layout.rb', line 29

def close_view(view)
  @views.delete view
  view.destroy

  if previous = @views.first
    apply
    previous.focus
  else
    VER.exit
  end
end

#create_view {|view| ... } ⇒ Object

Yields:

  • (view) 


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# File 'lib/ver/layout.rb', line 20

def create_view
  view = View.new(self)
  yield view
  @views.unshift view

  apply
  view.focus
end

#focus_next(current) ⇒ Object 



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# File 'lib/ver/layout.rb', line 41

def focus_next(current)
  visible = head_tail_hidden.first(2).flatten
  return unless index = visible.index(current)

  found = visible[index + 1] || visible[0]
  found.focus
end

#focus_prev(current) ⇒ Object 



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# File 'lib/ver/layout.rb', line 49

def focus_prev(current)
  visible = head_tail_hidden.first(2).flatten

  return unless index = visible.index(current)

  found = visible[index - 1]
  found.focus
end

#head_tail_hidden(options = {}) ⇒ Object 



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# File 'lib/ver/layout.rb', line 103

def head_tail_hidden(options = {})
  @options.merge!(options)
  strategy.prepare(self, @options)
end

#push_bottom(view) ⇒ Object 



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# File 'lib/ver/layout.rb', line 93

def push_bottom(view)
  @views.push(@views.delete(view))
  apply
end

#push_down(current) ⇒ Object

called on #3 -----—–+ > -----—–+ > -----—–+ > -----—–+ | | 2 | > | | 1 | > | | 3 | > | | 2 | | 1 ----- > | 3 ----- > | 1 ----- > | 1 ----- | | 3 | > | | 2 | > | | 2 | > | | 3 | -----—–+ > -----—–+ > -----—–+ > -----—–+



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# File 'lib/ver/layout.rb', line 79

def push_down(current)
  return unless index = @views.index(current)
  following = @views[index + 1] || @views[0]
  current.raise(following)
  @views[@views.index(following)], @views[index] = current, following

  apply
end

#push_top(current) ⇒ Object 



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# File 'lib/ver/layout.rb', line 88

def push_top(current)
  @views.unshift(@views.delete(current))
  apply
end

#push_up(current) ⇒ Object

called on #3 -----—–+ > -----—–+ > -----—–+ > -----—–+ | | 2 | > | | 3 | > | | 1 | > | | 1 | | 1 ----- > | 1 ----- > | 3 ----- > | 3 ----- | | 3 | > | | 2 | > | | 2 | > | | 2 | -----—–+ > -----—–+ > -----—–+ > -----—–+



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# File 'lib/ver/layout.rb', line 64

def push_up(current)
  return unless index = @views.index(current)
  previous = @views[index - 1]
  current.raise(previous)
  @views[index - 1], @views[index] = current, previous

  apply
end